Home / 150,487.21-207,600.80-90,045.68

Finding the Fourth Proportional to 150,487.21, 207,600.80 and 90,045.68

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Solution

The fourth proportional to 150,487.21, 207,600.80 and 90,045.68 is: 124,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,487.21 : 207,600.80 = 90,045.68 : x
  2. Step 2: Convert to fraction form
    150,487.21/207,600.80 = 90,045.68/x
  3. Step 3: Cross multiply
    150,487.21x = 207,600.80 × 90,045.68
  4. Step 4: Simplify right side
    150,487.21x = 18,693,555,273.32
  5. Step 5: Solve for x
    x = 18,693,555,273.32/150,487.21
  6. Step 6: Final answer
    x = 124,220.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.